B737 first officer and air carrier dispatcher reported the aircraft diverted to an alternate airport...

Narrative:

The captain and I noticed our oil temperature was increasing significantly on the number 2 engine while in cruise flight at FL380. As oil temperature continued to increase; oil quantity was decreasing. We realized pretty quickly an engine shutdown was imminent and started planning a divert and performed the associated checklists in the QRH (high oil temp followed by engine failure or shutdown which then led us to the engine severe damage checklist). We had initially requested delay vectors or a hold from center to get the engine secured and coordinate with dispatch; and were given a present position hold. 2-Way communication with dispatch was unsuccessful but we were able to pull weather information from ACARS and communicate our divert that way. We decided to divert to [a nearby airport] where we requested emergency personnel meet us off the runway to verify we could safely continue our taxi to the ramp. Single engine approach and landing were uneventful and the emergency personnel confirmed no exterior damage or fire so we had them follow us to the gate. Passengers deplaned at the gate.

Original NASA ASRS Text

Title: B737 First Officer and air carrier Dispatcher reported the aircraft diverted to an alternate airport after shutting down Number 2 engine. Both reporters stated they were not able to communicate with each other.

Narrative: The Captain and I noticed our oil temperature was increasing significantly on the Number 2 engine while in cruise flight at FL380. As oil temperature continued to increase; oil quantity was decreasing. We realized pretty quickly an engine shutdown was imminent and started planning a divert and performed the associated checklists in the QRH (High Oil Temp followed by Engine Failure or Shutdown which then led us to the Engine Severe Damage Checklist). We had initially requested delay vectors or a hold from Center to get the engine secured and coordinate with Dispatch; and were given a present position hold. 2-Way communication with Dispatch was unsuccessful but we were able to pull weather information from ACARS and communicate our divert that way. We decided to divert to [a nearby airport] where we requested emergency personnel meet us off the runway to verify we could safely continue our taxi to the ramp. Single engine approach and landing were uneventful and the emergency personnel confirmed no exterior damage or fire so we had them follow us to the gate. Passengers deplaned at the gate.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1373123
Time
Date	201607
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 180 Flight Crew Type 458
Person 2
Function	Dispatcher
Qualification	Dispatch Dispatcher
Events
Anomaly	Aircraft Equipment Problem Critical

B737 first officer and air carrier dispatcher reported the aircraft diverted to an alternate airport after shutting down number 2 engine. Both reporters stated they were not able to communicate with each other.